I'm very busy these days.

As I returned from school yesterday, I was caught in a sudden shower.

There was a cold wind blowing from the north.

Sometimes I will lose the context of my speech in an instant, as if a sudden gust of wind blows away the music score being played without leaving a trace.

We exchanged pleasantries, and chatted cordially about news in the team, and he moved the conversation naturally on to the main topic.